Edward b



E. D. SCHIVHTT.

RACK AND PINION.

APPLICATION FILED SEPT. 9. 191 1.

Patented Aug. 29

EDVVARD D. SCHMITT, F BALTIMORE, MARYLAND, ASSIGNOR TO AMERICAN BOTTLECAP C01VIPANY, OF BALTIMORE, MARYLAND, A CORPORATION OF DELAWARE.

BACK AND PINION.

onies.

Application filed September 9, 1911.

T 0 all whom it may concern:

Be it known that 1, EDWARD D. SCTIMITT, a citizen of the United States,residing at Baltimore city, State of Maryland, have invented certain newand useful Improvements in Racks and Pinions, of which the following isa. specification.

This invention relates to machines for applying bottle caps.

The primary object of the invention is to provide a mechanism forreciprocating a head of a bottle-capping or other machine a maximumdistance, or for the entire length of a stroke, by a minimum distance ofmovement of the operating-member, so that the movement of the foot ofthe operator required to manipulate said operating-member will beslight, thus rendering the operation of reciprocating a head or otherdevice less tiresome.

The invention consists of the construction and arrangement of themechanism hereinafter described, and briefly set forth in the claims.

Referring to the drawings, Figure 1 a central vertical section of themachine, with the sealing head in normal or position; Fig. 2 is asimilar view showing the sealing head depressed.

Referring to the drawings, the numeral 1 designates the machine casingwhich is hollow and preferably tubular in form provided vwith the usualbroadened base 2, which is surrounded near its upper end by a sleeve 3of a sealing head l. Secured to the top of the casing is a hollow cap 5,the lower part of which is preferably internally threaded for thereception of threads of the upper part of the casing. The upper end ofthe cap is provided with an aperture 6 for the passage of a shortthreaded eye-bolt 7 carrying at its upper end, and outside of the cap,an adjusting nut 8. To the lower end of the bolt is attached the upperend 01' a coil spring J, the lower end of which terminates in a ihook 10which passes through an aperture inl the lug 11, integral with a yoke12. which Iyoke has journaled therein a toothed-wheel 13 which mesheswith a rack bar 1% rigidly attached to the rear side ot' the casing.preferably by screws 15 as shown.

This wheel also meshes with a rack 16 rig idly secured to thereciprocating sealing head 4. the rack in this instance being preferablysecured to the head by means of Specification of Letters Patent.

Patented Aug. as, rain.

Serial No. 648,559.

screws 17. Screwed in the lower end of the yoke 12 is an operating rod18 which extends to the bottom of the machine where it is pivotallysecured to a treadle 19 by a transverse pin 20. The rear end of thetreadle is secured tothe base of the machine by a transverse pin 22 andthe "Forward end of the treadle extends out of the base through a slot23 and is provided on its outer end with a. foot-engaging piece 24.

The casing is provided with a narrow slot 4 1 through which the rack 16extends and presents its teeth for engagement with the teeth of thewheel 13. The downward movement of the sealing head is limited by thelower end of the slot 14;.

Secured to the machine casing at a suitable distance below the sealinghead is an adjustable bottle support provided with a which willobviously, through the medium of the toothed wheel 13 and racks 1 1 and16 depress the sealing head, against the'resistance or influence of thespring 9. When the treadleis released, the spring 9 will restore thesealing head to its normal or raised position. The gearing between thewheel and racks is such that a very short movement of the treadle willdepress the head for its entire stroke.

Having thus described my invention. what T claim is:

1. in a machine, a reciprocatory member provided with a rack bar; afixed rack-bar. a spring-restrained member, a toothedwheel carried bysaid member and adapted to engage the rack-bars, and means for operatingthe spring-restrained member to cause the downward movement of thereciprocatory member.

2. In a machine, a reciprocatory member provided with a rack-bar; afixed rack-bar; a spring-restrained yoke, atoothed-wheel jouinaledin theyoke and adapted to, engage the rack-bars, and means for operating saidyoke to c ause'thedownward movement of the reciprocatory member.

3. In a machine, ZL-IBCIPI'OCQCOIY member provided with a rack-bar; afixed rack-bar; .E: a spring-restrained yoke, a toothed-wheeljournziledin the yoke vand adapted to engage the retclg-bars; .arod'conne'eted with said yoke, and means for operating saidrod yoke tocause the downward movement of the same and thereby the reciprocatorymemi. ber. 'In testimony whereof I afiix my signature in presence of twowitnesses.

EDWARD D. SCHMITT. Witnesses JAMES F. JOHNSON, M. E. UPMAN.

